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Jacob Creech
@jacobvcreech
VP Tech @ Solana Foundation
1.2K Following    25.1K Followers
I can't wait until you see our badges for Solana Scale or Die Join us in London on September 14 to learn about the latest tech on Solana... and get a sick new badge while you're at it
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Once again, Solana just got faster 250ms slots are now live on Solana See you at 200ms
Solana is the most battle-tested network. Each stress test on Solana has been met with major improvements by the core engineering teams and further improved the network resiliency time over time. Solana's resiliency isn't just about surviving the worst days, but also making ambition for a better future possible.
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What actually happens after you submit a transaction on Solana? Well I broke it down for you. In just 1 minute you'll be able to understand exactly how Solana transactions work ↓
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Uniswap-style AMMs lose traders money on stablecoin swaps. Not from fees — from math. x*y=k spreads liquidity across every price from zero to infinity. But USDC/USDT trades at $1 — so almost all of that liquidity sits where no trade will ever happen, and traders eat the difference as slippage. Curve's StableSwap invariant fixes this: flat near the peg (nearly zero slippage), constant product at the extremes (pool can't be drained). New whiteboard video: the math visualized side by side, then building a working stable swap AMM on Solana with Rust and Anchor. Full video linked in this thread 🧵👇
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We're removing floating-point math from Solana's core protocol. Layer by layer. Layer one: SIMD-0391, activated on mainnet-beta at epoch 1026. It replaces all floating-point (floats) arithmetic in the Stake Program and validator client’s warmup and cooldown logic with fixed-point math. Layer two: SIMD-0607, now proposed and in review. It targets the runtime itself, removing floats from the inflation rewards and rent calculation path. Floats can round differently across different hardware, validator clients, and compilers, introducing the possibility of consensus divergence and liveness risk. SIMD-0391 and SIMD-0607 eliminates this by standardizing on fixed-point. These two improvements aren't the end. Floating-point lives in other, less urgent paths that will transition to fixed-point eventually.
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This is history. You are witnessing global finance getting faster. @solana is home ❤️
There are a lot of major changes happening soon - Next week: First step down in rent reduction - Sept 9: Transaction V1 goes live - Dropping slot time even further - October: Alpenglow Then we all meetup at Scale or Die in November Solana development will never be the same
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This is an example of how to do incident response right. * have proper monitoring in place * work quickly to identify and patch the issue * utilize Solana’s SIRN program for assistance * publicly acknowledge and address the impact as soon as possible * make affected users whole Great example to set for the ecosystem and a case study we’ll use to improve the Solana ecosystem’s security posture even more in the future.
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if you've ever wired microservices together, you already understand how Solana apps work you just don't know it yet new whiteboard video on CPIs — how programs call programs onchain 👇
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suffering from governance fatigue? 👨‍⚖️ take respite in another slot time reduction thread 🏎️🏎️
Solana Validator Governance has concluded. Results: ✅ SGP-0001: The Solana Constitution ✅ SGP-0002: Double Disinflation ❌ SGP-0003: Resource and Inclusion Fee
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Results are in SGP 0001: The Solana Constitution - PASS SGP 0002: Double Disinflation - PASS SGP 0003: Resource and Inclusion Fees - FAIL There is a lot to clean up with the governance process but it was definitely an exciting and important first set of SGPs. Thank you to @exo_solana @solanaturbine @micaiah_txtx @qtmoses and the NCN operators for all of the hard work.
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The recent 3 governance votes on Solana are now over The stats: - Governance Process(SGP-1) passed - Doubling Disinflation(SGP-2) passed - Resource and Inclusion fee(SGP-3) failed - >61% of stake participated Solana had the highest participation in onchain governance ever
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1 hour and 40 minutes left It’s time to vote:
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🚨 Get ready for larger 4KB @solana V1 transactions! 🚨 Everything you need to know is in this guide:
Audit your repos for Agave 4.2 breaking changes with our agent skill - Set maxSupportedTransactionVersion to 1 - Parse priority fees from transactionConfig - Index the new rewardType, DeactivatedStake - Bump SDK and gRPC dependencies Agent skill here:
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One of my first roles in crypto was as an ambassador for the OG @Solana University program. Back in 2022, I helped bring Solana to campuses alongside @adlonymous, @joeymeere, @0xSolanaGirl, and @masterzorgon — all of whom have gone on to do incredible things in the industry. The program accelerated my career. Through Solana University, I attended Breakpoint Lisbon, where I ultimately landed an internship at @Parcl. Now, we’re bringing it back with @college_xyz The new Solana University Ambassador Program is significantly more built out. Ambassadors will receive: — A significant USDC stipend — Direct access to the Solana Foundation and ecosystem — Funding to host workshops, build nights, and other campus events — Opportunities to attend major Solana events — A student demo day, likely hosted at @UBC_Conference We’re kicking things off with 10 universities and two ambassadors per campus. This is one of the best opportunities out there for students looking to break into crypto. Apply here: @SolanaUni lives on 🌱
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Ever wonder how an app's data is stored without a database or a sever? On Solana, data is stored directly on the blockchain with Accounts and PDAs. Learn what a PDA is in the video below, or save it on YouTube to watch later 👇
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Since everyone is talking about it already: I also made a video on Transaction v1 👇